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-rw-r--r--clang/lib/AST/Expr.cpp99
1 files changed, 25 insertions, 74 deletions
diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
index 37f7d267d97..8473c096afe 100644
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/lib/AST/Expr.cpp
@@ -1929,6 +1929,9 @@ bool Expr::isUnusedResultAWarning(const Expr *&WarnE, SourceLocation &Loc,
case GenericSelectionExprClass:
return cast<GenericSelectionExpr>(this)->getResultExpr()->
isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx);
+ case ChooseExprClass:
+ return cast<ChooseExpr>(this)->getChosenSubExpr()->
+ isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx);
case UnaryOperatorClass: {
const UnaryOperator *UO = cast<UnaryOperator>(this);
@@ -2295,6 +2298,12 @@ Expr* Expr::IgnoreParens() {
continue;
}
}
+ if (ChooseExpr* P = dyn_cast<ChooseExpr>(E)) {
+ if (!P->isConditionDependent()) {
+ E = P->getChosenSubExpr();
+ continue;
+ }
+ }
return E;
}
}
@@ -2304,26 +2313,11 @@ Expr* Expr::IgnoreParens() {
Expr *Expr::IgnoreParenCasts() {
Expr *E = this;
while (true) {
- if (ParenExpr* P = dyn_cast<ParenExpr>(E)) {
- E = P->getSubExpr();
- continue;
- }
+ E = E->IgnoreParens();
if (CastExpr *P = dyn_cast<CastExpr>(E)) {
E = P->getSubExpr();
continue;
}
- if (UnaryOperator* P = dyn_cast<UnaryOperator>(E)) {
- if (P->getOpcode() == UO_Extension) {
- E = P->getSubExpr();
- continue;
- }
- }
- if (GenericSelectionExpr* P = dyn_cast<GenericSelectionExpr>(E)) {
- if (!P->isResultDependent()) {
- E = P->getResultExpr();
- continue;
- }
- }
if (MaterializeTemporaryExpr *Materialize
= dyn_cast<MaterializeTemporaryExpr>(E)) {
E = Materialize->GetTemporaryExpr();
@@ -2345,24 +2339,12 @@ Expr *Expr::IgnoreParenCasts() {
Expr *Expr::IgnoreParenLValueCasts() {
Expr *E = this;
while (true) {
- if (ParenExpr *P = dyn_cast<ParenExpr>(E)) {
- E = P->getSubExpr();
- continue;
- } else if (CastExpr *P = dyn_cast<CastExpr>(E)) {
+ E = E->IgnoreParens();
+ if (CastExpr *P = dyn_cast<CastExpr>(E)) {
if (P->getCastKind() == CK_LValueToRValue) {
E = P->getSubExpr();
continue;
}
- } else if (UnaryOperator* P = dyn_cast<UnaryOperator>(E)) {
- if (P->getOpcode() == UO_Extension) {
- E = P->getSubExpr();
- continue;
- }
- } else if (GenericSelectionExpr* P = dyn_cast<GenericSelectionExpr>(E)) {
- if (!P->isResultDependent()) {
- E = P->getResultExpr();
- continue;
- }
} else if (MaterializeTemporaryExpr *Materialize
= dyn_cast<MaterializeTemporaryExpr>(E)) {
E = Materialize->GetTemporaryExpr();
@@ -2380,10 +2362,7 @@ Expr *Expr::IgnoreParenLValueCasts() {
Expr *Expr::ignoreParenBaseCasts() {
Expr *E = this;
while (true) {
- if (ParenExpr *P = dyn_cast<ParenExpr>(E)) {
- E = P->getSubExpr();
- continue;
- }
+ E = E->IgnoreParens();
if (CastExpr *CE = dyn_cast<CastExpr>(E)) {
if (CE->getCastKind() == CK_DerivedToBase ||
CE->getCastKind() == CK_UncheckedDerivedToBase ||
@@ -2400,26 +2379,11 @@ Expr *Expr::ignoreParenBaseCasts() {
Expr *Expr::IgnoreParenImpCasts() {
Expr *E = this;
while (true) {
- if (ParenExpr *P = dyn_cast<ParenExpr>(E)) {
- E = P->getSubExpr();
- continue;
- }
+ E = E->IgnoreParens();
if (ImplicitCastExpr *P = dyn_cast<ImplicitCastExpr>(E)) {
E = P->getSubExpr();
continue;
}
- if (UnaryOperator* P = dyn_cast<UnaryOperator>(E)) {
- if (P->getOpcode() == UO_Extension) {
- E = P->getSubExpr();
- continue;
- }
- }
- if (GenericSelectionExpr* P = dyn_cast<GenericSelectionExpr>(E)) {
- if (!P->isResultDependent()) {
- E = P->getResultExpr();
- continue;
- }
- }
if (MaterializeTemporaryExpr *Materialize
= dyn_cast<MaterializeTemporaryExpr>(E)) {
E = Materialize->GetTemporaryExpr();
@@ -2448,10 +2412,7 @@ Expr *Expr::IgnoreConversionOperator() {
Expr *Expr::IgnoreParenNoopCasts(ASTContext &Ctx) {
Expr *E = this;
while (true) {
- if (ParenExpr *P = dyn_cast<ParenExpr>(E)) {
- E = P->getSubExpr();
- continue;
- }
+ E = E->IgnoreParens();
if (CastExpr *P = dyn_cast<CastExpr>(E)) {
// We ignore integer <-> casts that are of the same width, ptr<->ptr and
@@ -2473,20 +2434,6 @@ Expr *Expr::IgnoreParenNoopCasts(ASTContext &Ctx) {
}
}
- if (UnaryOperator* P = dyn_cast<UnaryOperator>(E)) {
- if (P->getOpcode() == UO_Extension) {
- E = P->getSubExpr();
- continue;
- }
- }
-
- if (GenericSelectionExpr* P = dyn_cast<GenericSelectionExpr>(E)) {
- if (!P->isResultDependent()) {
- E = P->getResultExpr();
- continue;
- }
- }
-
if (SubstNonTypeTemplateParmExpr *NTTP
= dyn_cast<SubstNonTypeTemplateParmExpr>(E)) {
E = NTTP->getReplacement();
@@ -2728,7 +2675,9 @@ bool Expr::isConstantInitializer(ASTContext &Ctx, bool IsForRef) const {
return cast<GenericSelectionExpr>(this)->getResultExpr()
->isConstantInitializer(Ctx, IsForRef);
case ChooseExprClass:
- return cast<ChooseExpr>(this)->getChosenSubExpr(Ctx)
+ if (cast<ChooseExpr>(this)->isConditionDependent())
+ return false;
+ return cast<ChooseExpr>(this)->getChosenSubExpr()
->isConstantInitializer(Ctx, IsForRef);
case UnaryOperatorClass: {
const UnaryOperator* Exp = cast<UnaryOperator>(this);
@@ -2887,7 +2836,7 @@ bool Expr::HasSideEffects(const ASTContext &Ctx) const {
HasSideEffects(Ctx);
case ChooseExprClass:
- return cast<ChooseExpr>(this)->getChosenSubExpr(Ctx)->HasSideEffects(Ctx);
+ return cast<ChooseExpr>(this)->getChosenSubExpr()->HasSideEffects(Ctx);
case CXXDefaultArgExprClass:
return cast<CXXDefaultArgExpr>(this)->getExpr()->HasSideEffects(Ctx);
@@ -3082,7 +3031,13 @@ Expr::isNullPointerConstant(ASTContext &Ctx,
return PE->getSubExpr()->isNullPointerConstant(Ctx, NPC);
} else if (const GenericSelectionExpr *GE =
dyn_cast<GenericSelectionExpr>(this)) {
+ if (GE->isResultDependent())
+ return NPCK_NotNull;
return GE->getResultExpr()->isNullPointerConstant(Ctx, NPC);
+ } else if (const ChooseExpr *CE = dyn_cast<ChooseExpr>(this)) {
+ if (CE->isConditionDependent())
+ return NPCK_NotNull;
+ return CE->getChosenSubExpr()->isNullPointerConstant(Ctx, NPC);
} else if (const CXXDefaultArgExpr *DefaultArg
= dyn_cast<CXXDefaultArgExpr>(this)) {
// See through default argument expressions.
@@ -3567,10 +3522,6 @@ StringRef ObjCBridgedCastExpr::getBridgeKindName() const {
llvm_unreachable("Invalid BridgeKind!");
}
-bool ChooseExpr::isConditionTrue(const ASTContext &C) const {
- return getCond()->EvaluateKnownConstInt(C) != 0;
-}
-
ShuffleVectorExpr::ShuffleVectorExpr(ASTContext &C, ArrayRef<Expr*> args,
QualType Type, SourceLocation BLoc,
SourceLocation RP)
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